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TECHNICAL INFORMATION

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[IABSE 2018 France] Erection Engineering of the Skytrain Cable Stayed Bridge 2020-03-20
ÆÄÀϾÆÀÌÄÜ Ã·ºÎÆÄÀÏ :

Abstract

Selected details related with the development of erection engineering for a highly complex cable

stayed bridge for the Sydney Metro North West (SMN), Skytrain section, in Australia are presented.

An overview is provided of some of the key architectural and technical constraints that underpinned

the erection options of the precast (PC) post-tensioned segmental structure. Options for the

erection of the superstructure and the steel-concrete composite pylons are briefly discussed with

the focus on an innovative hybrid option combining the free cantilever technique with span-by-span

erection of the superstructure using an overhead gantry. The importance of staged construction

simulation is discussed and some of the key parameters to which it may be sensitive to are outlined.

The implementation of a robust protocol for monitoring and updating the evolving structural

geometry during erection and the use of the simulation for verification and validation are discussed.


Keywords: cable stayed bridge, extradosed, segmental, post-tensioned, precast, engineering,

erection.

 
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